Race Comment Explainer

Original comment with matches highlighted:

mid-division, pushed along and 1f out over 3f out, soon went 4th, ridden and over 1f out

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Mid-division	Running in the middle of the pack.
One pace	The horse maintained its speed but could not accelerate or quicken.
Headway	The horse was moving up through the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Running in the middle of the pack.
The horse maintained its speed but could not accelerate or quicken.
The horse was moving up through the field.